Home / 1,273.02-1,905.69-1,151.34

Finding the Fourth Proportional to 1,273.02, 1,905.69 and 1,151.34

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Solution

The fourth proportional to 1,273.02, 1,905.69 and 1,151.34 is: 1,723.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273.02 : 1,905.69 = 1,151.34 : x
  2. Step 2: Convert to fraction form
    1,273.02/1,905.69 = 1,151.34/x
  3. Step 3: Cross multiply
    1,273.02x = 1,905.69 × 1,151.34
  4. Step 4: Simplify right side
    1,273.02x = 2,194,097.12
  5. Step 5: Solve for x
    x = 2,194,097.12/1,273.02
  6. Step 6: Final answer
    x = 1,723.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.